US3526287A - Scales having a transducer and a platform mounted for limited lateral movement - Google Patents

Scales having a transducer and a platform mounted for limited lateral movement Download PDF

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Publication number
US3526287A
US3526287A US705139A US3526287DA US3526287A US 3526287 A US3526287 A US 3526287A US 705139 A US705139 A US 705139A US 3526287D A US3526287D A US 3526287DA US 3526287 A US3526287 A US 3526287A
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US
United States
Prior art keywords
transducer
load carrier
scales
lateral movement
journalling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US705139A
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English (en)
Inventor
Rune Flinth
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ABB Norden Holding AB
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ASEA AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ASEA AB filed Critical ASEA AB
Application granted granted Critical
Publication of US3526287A publication Critical patent/US3526287A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
    • G01G19/028—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles combined with shock-absorbing devices

Definitions

  • the invention relates to scales having force-sensitive transducers which support the load carrier.
  • the present invention relates to an arrangement for scales, such as platform scales, container scales and the like, consisting of a load carrier and at least one force sensitive transducer, 'by which the above mentioned disadvantages are completely avoided.
  • the invention is characterised in that the load carrier is supported by at least one journalling element consisting of at least two metal plates and plates of resilient material arranged between the metal plates and having great elasticity in the horizontal direction and that the scales has a number of stationary stops for limiting the sidewise movement of the load carrier when it is subject to lateral forces, which stops are arranged at such a distance from the load carrier that this is freely movable in the vertical direction when it is uninfluenced by lateral forces.
  • the transducer is in contact with a journalling element on at least one of its horizontal sides. This is so that if it proves necessary two journalling elements can be arranged one above the other and the transducer placed between them. This provides greater elasticity in sidewise direction and less mechanical stress on the transducer.
  • the transducer and journalling element are built together as a unit. This provides easier mounting when the scales are being constructed and also lower total height since certain mechanical parts of the transducer and journalling element may be common.
  • FIG. 1 shows a side view of a platform scales according to the invention.
  • FIGS. 2 and 3 show how a journalling element may be designed.
  • the scales according to FIG. 1 comprises a load carrier 2 arranged in a base 1.
  • the load carrier which is usually rectangular, is supported at each corner by supports '3, a transducer 4 arranged on this and a journalling element 5 yielding in sidewise direction.
  • the load carrier is sunk into the bases so that it is in substantially the same plane as the base and the edges of the base around the load carrier are made as stops for the load carrier.
  • the distance between the load carrier and the edges of the base should be as small as possible so that the lateral forces arising on the transducer will be as small as possible and so that the transducer is not damaged.
  • the size of the gap between the load carrier and the base is about 5-10 mm.
  • the journalling element 5 consists of two metal plates 6, preferably consisting of steel and a plate 7 of rubber or similar material situated between them.
  • the rubber plate is rigidly vulcanized to the steel plates.
  • the rubber plate is of such material and has such dimensions that its maximum compression in the load direction is negligible, of the order of magnitude 0.5 mm. In sidewise direction, however, it should have a considerably greater elasticity so that it permits lateral movement of one steel plate in relation to the other of about 5-10
  • the journalling element may be built together with a transducer 8 and a third steel plate 9 arranged below this to form a unit which can be placed directly on the support 3 in FIG. 1.
  • FIG. 1 is only one example to explain the inventive idea. It is of course possible to mount the scales on a flat floor with sloping edges arranged on the floor to facilitate driving up onto the load carrier and which then also provide stops to limit movement of the load carrier in sidewise direction.
  • overload protection in the vertical direction so that the load carrier rests on the overload protection means when the load becomes so great that there is risk of the transducer being overloaded.
  • scales comprising a load carrier and a plurality of spaced force sensitive transducer means positioned beneath the load carrier in which the load carrier is supported by journalling means one for each transducer means comprising at least two metal plates and a plate of resilient material arranged between the metal plates and having great elasticity in the horizontal direction supporting the load carrier, one of said plates being in forcetransmitting engagement with said transducer means and being rockable with respect thereto about a horizontal plane, the scales having a plurality of stationary stops for limiting lateral movement of the load carrier when it is subjected to lateral forces which stops are arranged at a distance from the load carrier whereby the load carrier is freely movable in the vertical direction when it is uninfluenced by lateral forces said transducer means and said journalling means forming the sole support of the load carrier.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Floor Finish (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
US705139A 1967-02-27 1968-02-13 Scales having a transducer and a platform mounted for limited lateral movement Expired - Lifetime US3526287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE02654/67A SE336910B (de) 1967-02-27 1967-02-27

Publications (1)

Publication Number Publication Date
US3526287A true US3526287A (en) 1970-09-01

Family

ID=20260393

Family Applications (1)

Application Number Title Priority Date Filing Date
US705139A Expired - Lifetime US3526287A (en) 1967-02-27 1968-02-13 Scales having a transducer and a platform mounted for limited lateral movement

Country Status (8)

Country Link
US (1) US3526287A (de)
AT (1) AT279200B (de)
BE (1) BE710863A (de)
CH (1) CH484418A (de)
FR (1) FR1562183A (de)
GB (1) GB1191189A (de)
NL (1) NL6802695A (de)
SE (1) SE336910B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993151A (en) * 1975-03-19 1976-11-23 Wirth, Gallo And Company Mass and force meter
US4036317A (en) * 1975-11-06 1977-07-19 Ab Stathmos Apparatus for measuring loads

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901235A (en) * 1956-11-21 1959-08-25 Toledo Scale Corp Platform supporting structure for weighing scales
US3123166A (en) * 1964-03-03 Load cell mounting and alignment for weighing means
US3176508A (en) * 1962-06-04 1965-04-06 Warren F Ward Weight scale and shock absorber
US3277718A (en) * 1961-08-01 1966-10-11 Baldwin Lima Hamilton Corp Electrical pressure transducer
US3299976A (en) * 1964-10-20 1967-01-24 Girling Ltd Compact vehicle weighbridge with transverse and horizontal restraints
US3306384A (en) * 1966-06-07 1967-02-28 Ross Victor Hydraulic weigher with stabilizing rods for use on truck

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123166A (en) * 1964-03-03 Load cell mounting and alignment for weighing means
US2901235A (en) * 1956-11-21 1959-08-25 Toledo Scale Corp Platform supporting structure for weighing scales
US3277718A (en) * 1961-08-01 1966-10-11 Baldwin Lima Hamilton Corp Electrical pressure transducer
US3176508A (en) * 1962-06-04 1965-04-06 Warren F Ward Weight scale and shock absorber
US3299976A (en) * 1964-10-20 1967-01-24 Girling Ltd Compact vehicle weighbridge with transverse and horizontal restraints
US3306384A (en) * 1966-06-07 1967-02-28 Ross Victor Hydraulic weigher with stabilizing rods for use on truck

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993151A (en) * 1975-03-19 1976-11-23 Wirth, Gallo And Company Mass and force meter
US4036317A (en) * 1975-11-06 1977-07-19 Ab Stathmos Apparatus for measuring loads

Also Published As

Publication number Publication date
GB1191189A (en) 1970-05-06
FR1562183A (de) 1969-04-04
CH484418A (de) 1970-01-15
AT279200B (de) 1970-02-25
SE336910B (de) 1971-07-19
NL6802695A (de) 1968-08-28
BE710863A (de) 1968-07-01

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